Date Span
n.d.
102
n.d
9
Twentieth Century
7
ca.1968-1969
7
1931
5
1937
5
1988
5
1993-1996
5
1995
5
2000
5
20th century
5
1890s-1940s
4
1907
4
1926
4
1932-33
4
1953-1956
4
1955
4
1968
4
1973
4
1981
4
1986
4
1987
4
1991-1992
4
1992-1995
4
(?1880s)-1994
3
1905
3
1913
3
1931-32
3
1934
3
1936
3
1937 - 1939
3
1938 - 1974
3
1950
3
1950 - 1978
3
1960 - 1965
3
1960-2003
3
1962-1981
3
1963-1971
3
1964-2001
3
1965-1966
3
1966
3
1966, n.d.
3
1968-1969
3
1972
3
1974-1975
3
1980
3
1980s-1990s
3
1981-1998
3
1989
3
1990
3
more ...